6 



iron ring playing loose on the axle, 

 and a strong iron hook playing loose 

 on this ring, to hold the weight when 

 raised. 



Shafts ten feet four inches from the axle ; 

 to take on and off the axle by means of a 

 hook and screw. Five chains twelve feet 

 six inches in length, with a hook at each 

 end ; one chain fourteen feet six inches in 

 length, with a hook at each end, and with 

 six round links at each end, to distinguish 

 it from the other chains. A box with six 

 compartments to hold the chains. Two 

 strong planks eight feet in length, with 

 a hole bored in each, to fit on to a pin 

 on the shafts, along which, and across the 

 axle, the planks are to rest when carried 

 on the machine. A box or thill on the 

 shafts to carry four blocks for the wheels, 

 spades, pickaxes, &c. A South American 

 surcingle, and three or four rope traces 

 with a hook at each end. A strong rope 



